Manhunt under way for Massachusetts man accused of killing girlfriend in front of children

This photo, released by the Middlesex County District Attorney's office, shows 39-year-old murder suspect Christopher Piantedosi, of Methuen, Mass.

A manhunt is under way for a Massachusetts man who authorities say stabbed his girlfriend to death in front of her two children.

Police issued an arrest warrant Friday morning for 39-year-old Christopher Piantedosi, of Methuen, on one count of murder.

Piantedosi, who authorities say may be armed and dangerous, is accused of stabbing 38-year-old Kristen Pulisciano inside her home Thursday in Burlington, Mass. Her body was found by police at 6:45 p.m. Thursday.

"Authorities are requesting assistance at this time from the public in locating the suspect," Middlesex County District Attorney Gerard T. Leone Jr.'s office said in a statement obtained by FoxNews.com.

"The public is urged not to approach the suspect if they see him, who may be armed and dangerous, but rather are urged to contact your local police station with any information," the statement said.